Robert Szego said:
Since our Citabrias and Decathlons are aerobatic, there isn't a safety reason NOT to practive them... or are there?
If you are an instructor, do you teach Spins? How many turns? What is your minimum start altitude? What is your Floor?
Any other Comments?
I am not yet an instructor. Now that I am retired from high school teaching, I may become one. However, I practice spins as part of the sportsman's sequence. In my 7KCAB, I lose about 500 ft in a 1 1/4 turn spin. In competition, that would be at a maximum of 3500 agl, but could be lower. The floor of the aerobatic box is 1500 agl. In Citabrias and decathlons, the spin isn't fully developed until about the 3rd turn. It can take longer to get out of this, so anyone learning muiltiple turn spins should have plenty of altitude.
Spins are technically normal training maneuvers; they used to be a normal part of private pilot training, with good reason. Spin awareness has saved many a life and the lack of such awareness can be fatal, yet I have flown with experienced pilots who do not recognize the stall buffet, do not realize that the stall is related to angle of attack and can occur at any airspeed and any direction, including straight down, and do not understand the dynamics of spins. If they should inadvertantly get into one, will they know what to do? If they do know what to do, will they be too terrified to do it? Stall/spin training prepares them for that eventuality, just like any other emergency training.
The dangers involved in spin practice would be similar to other training manuevers. You must have enough altitude and be situationally aware. I would start at 3500 or higher and be especially aware of other aircraft at lower altitudes. In multiple use training areas, the average pilot does not expect to see an aircraft spinning down toward him. Broadcast your intentions, and give other pilots plenty of berth. I live in a congested area and have been flying Citabrias and doing spins in them since 1970. That's almost 40 years, and I know of only one collision involving a spin. Of course, It is always a good idea for a person to get training before they go it alone, preferably in their aircraft.